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What are called metamorphic rocks

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What are called metamorphic rocks
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Yogita Ingle 6 years, 8 months ago

Igneous and sedimentary rocks deep below the Earth’s surface are buried under the huge weight of the rocks, sediments and soil above them.

They are also subjected to high temperatures. The temperature increases by about 25°C for every kilometer below the surface.

This heat and pressure can change the composition and appearance of the minerals in rocks.

The process of change in the rocks is called metamorphism and the rocks that are formed by these changes are called metamorphic rocks.

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